66050880 has 112 divisors (see below), whose sum is σ = 239694720. Its totient is φ = 15095808.

The previous prime is 66050849. The next prime is 66050891. The reversal of 66050880 is 8805066.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1806 + ... + 11634.

Almost surely, 2^66050880 is an apocalyptic number.

66050880 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66050880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119847360).

66050880 is an abundant number, since it is smaller than the sum of its proper divisors (173643840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66050880 is a wasteful number, since it uses less digits than its factorization.

66050880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9856 (or 9846 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 66050880 is about 8127.1692488836. The cubic root of 66050880 is about 404.2278230103.

The spelling of 66050880 in words is "sixty-six million, fifty thousand, eight hundred eighty".